Battery plate



W. ROBERTS.

BATTERY PLATE.

APPucATloN FILED MAR. I7. 192|.

Patented May 2,

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Wmum Roberts l NVEN TOR.

. l TTORNEY.

UNlTED-f STATES PATENT OFFICE.

WILLIAM ROBERTS, OF AKRON, OHIO, ASSIGNOR 0F TWO-THIRDS T0 FRANK T.

LAHEY, OF AKRON, OHIO.

BATTERY PLATE.

mimic.

Application led. March 17, 1921. Serial No. 453,123.

To all whom t may concer/n.'

Be it known that I, WILLIAM ROBERTS, a citizen of the United States,residinv at Akron, inthe county of Summit and tate of Ohio, haveinvented certain new and useful Improvements in Battery Plates, of whichthe following is a specification.

This invention relates to the manufacture of plates for use in storagebatteries and is designed to improve upon the design of plates now inuse enabling a greater quantity of the gaste to be held and retained inthe plates. t is also an object of the invention to construct a batteryplate which will more securely hold the paste and be more efficient thanthose previously designed. It is also an object of the invention toprovide a substitute for the generally used sheetwood separators. I

In the drawings is shown one form of battery plate such as is includedwithin the scope of my invention, such showing being representativemerely and not to be under-l stoodl as embodying all forms of theinvention, as changes and modificationsmay be made without departingfrom the invention.

Fig. l of the drawings shows a single element of the battery inelevation. FFig. 2 is a section on"the line 2-2 of Fig. 3 isv anenlarged view of one of the 'units of the battery element showing afragmentary portion only v'with an abutment shown in a diierent positionfrom that shown in Fig. 1.

Fig. 4 is an enlarged cross section on line 4-4of Fig. l1. v

rlhe single elementor plate of the battery shown in the drawing is inreality composed of a plurality of plates, preferably two plates, placedface to face,`the plates being of a grid-like construction' securedtogether in opposing relationship, the grid-workl be- A ing so designedas to enable a large quantity of the paste to be securely retained.

The battery plate is shown at l and is of the usual shape provided withthe terminal 2, the plate being made of the usual lead alloy. Thegrid-work of the plate is made up of a number of spaced parallelvertical ribs or bars 3 and a plurality of spaced horizontal bars 4, thepreferred arrangement being as shown so that a number of elongatedrectangular openings 5 are provided. The, ribs are shown as triangularin cross-sectlon the bases ofthe triangles being iush with one surfaceof the plate. When the two plates to forma single battery element areplaced together the apexes of the triangles face each other as shown inFig. 4. It will be understood that the triangular shape of the bars isnot essential to this invention and although bars of this shape areadmirably suited for the purpose, other cross sections may be emplnyedfor this portion of the plate.

ultably distributed over the plate in parallel rows, preferably spacedequidistantly, area number of formations or buttons 6, into which theribs or bars are merged., these buttons being frusto-conical inshape,.pointing in the'same direction as the ribs and extend.- lngslightly above'the tops or apexes of the bars or ribs, so that thebuttons form spacers to hold the two plates slightly apart, pro- Thesepins are preferably made of hard rub- Patented May 2, 1922.

teners 8 which hold the plates together.

ber and are provided with extended studs 9, l

and these studs being provided for the reception of the separators.

- The separators may be of any desired form it being one of the objectsof this invention to provide a suitable substitutefor the ordinary woodseparators now used in storage batteries. Inthe form shown in thisapplication I make use of strips of hard rubber 10 laid over theextended ends of the securing pins. It would be practicable 'to relyupon the studs 9 as separators, except that deposits are liable to formor build upon y these extended ends and might be objectionable.

Certain of the ribs forming the grid-work may bev made slightly heavieror thicker than others to strengthen the plate, this being illustratedin 4, in which the ribs 4f:L are shown as slightly'larger than the otherribs'. v

Having described the form of battery plate shown herein, it will beunderstood that am not confined to exact details or arrangement andproportion of the parts, but am permitted to vary such detalls withinthe scope of my invention. Y

By formin the' plates with the long, narrow 'rectang'u ar openings 5, lam .enabled to obtain a large percentage of access. to the activematerlal and a maximum contact is l rovided between the active materialand the body. of the plates. `The` plates here shown are light andstrong and are suitable for use inautomobiles. The area of the openingsis y'storage batteries, the space between the apeXes of thetriangularbars and the rectangular openings between the bars serving tosecurely hold and retain a large amount' of the paste. The paste mayconveniently be ap lied to the battery element after the two p ates areassembled.l lt will be seen that by the shape of the plate a maximumexposure of the active material of the battery is obtained, andfurthermore, there is no tendency for any of thev material to be shakenfrom-the-plate and lost, as any whlch is loosened will not tend to fallout, but will be retained in the elementby the tapering or downwardlyinclined surfaces of the bars composing. the grid-work. l The. apexes ofthe bars are placed in,opposition so that the material is trapped andheld by the converging upper surfaces of the bars.

1. A vbattery element comprising two plates separated from' each other,a plurality of horizontal and vertical ribsl in said plates, the-ribsintersecting to form elongated rectangular openings and a plurality ofisolated .abutments on 'said lates said i abutments extending above thep ane 'of the ribs and forming spacing members between' the plates andmeans for securing the plates together with thelabutments in contact.

2. A battery element comprising two plates separated .from each other, aplurality of ribs on said plates, said ribs intersecting to form longnarrow openings and means to secure said plates together with the ribsin opposition'but separated fromcontact, comprising isolated abutments.onone of said plates raised above the plane of the ribs and meanstohold the plates together with the abutments contacting the opposite,plate forming spacing members' 'between .the plates. A v

.3. A1 battery element comprising two plates, each of said platescomprising inten secting ribs, -aplurality of isolated integralabutments dlstributed over the surface of Lamme the plate, the abutmentsprojecting abovev 5. A battery plate, a plurality of hard. l

rubber pins projecting from the plate and asupported by the hard rubberstrip entirely pins and actingas a separator. y

6. A battery element comprising two plates, means to space the twoplates apart, fcom'prising a plurality-of abutments on one of saidplates projecting above the surface of the plate and contacting theother' plate, and insulating pins passing through said plates at theabutments.

7. A battery element comprising two plates, means to space the twoplates apart, comprising a plurality of abutments on one of said platesprojecting above the surface of the plate and contacting the otherlplate,

and insulating Ipins passing through said plates.

8. A4 battery element comprising two plates, means to space the twoplates apart comprising a plurality of abutmentson one ofl said platesprojecting above the surface of the p and insulating pins passingthrough said plates. f

9. A battery element comprising two plates, means to space the twoplates apart comprising a plurality of-abutments on one of said platesprojecting above the surface of the plate and contacting the otherplate, insulating pins passing through. said plates and separatingstrips received over the pins.

10. A battery element comprising two plates, formed of a plurality ofintersect- -ing ribs, said ribs beingtriangular in cross ate andcontacting the other plate, l

section, the apices of the ribs being on the surface 'of the plates,said formations being in contact, pins passing through the formations onsaid plates and serving to connect them together.

11. A battery element comprising two plates, formed of a plurality ofintersecting ribs, said ribs being triangular in cross section, theapices of the ribs being on the inside of the element, a plurality ofenlarged isolated formations distributed over the surface of the plates,said formations being in contact, pins passing through the formations onsaid plates and serving to connect them together, and insulatingseparating strips on thefpins.

't WILLIAM tonnrs.

